Marius & Lutgart de Boer + 5000m | KilimanjaroAlkmaar5/525-09-2017We found your service to be excellent. Excellent agreements about delivery and collection dates and very punctual times, as if you were waiting around the corner for the right time. Good instruction during installation, interested in the purpose etc. Good opportunities to ask questions in between which were generally answered quickly and adequately. We think the altitude tent made a significant contribution, although our haematocrit was not measured. The body has had quite a long altitude experience anyway so that will certainly have helped. Saturation during the trek to the summit of Kilimanjaro remained fine. In the morning at rest around or above 90 and in the evening around 83 to 85, with me often one point lower than my wife. In short, fine. We made it to the top of Kilimanjaro without much complaint, much to the surprise of the guides who had their doubts about such a 63-year-old. Thanks again for your contribution. They will certainly recommend you.